3-Amino-5-(2-chlorophenyl)pyrazole CAS 126520-01-2
| CAS No. | 126520-01-2 |
| Molecular Formula | C9H12ClN3 |
| Molecular Weight | 197.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3-Amino-5-(2-chlorophenyl)pyrazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies 3-Amino-5-(2-chlorophenyl)pyrazole (CAS 126520-01-2), a certified reference material (molecular formula C9H12ClN3, MW 197.66 g/mol) for analytical method development and quality control.
The molecular framework of 3-Amino-5-(2-chlorophenyl)pyrazole (C9H12ClN3) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H12ClN3 |
| Molecular Weight | 197.66 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Amino Standards
- 1-(4-Amino-2,5-dimethylphenyl)-2-chloroethan-1-one (CAS 110872-53-2)
- 5-Amino-3-chloro-5,6,7,8-tetrahydronaphthalen-1-ol (CAS 1337373-52-0)
- 3-Amino-3-(4-chlorophenyl)cyclobutanol (CAS 1353636-85-7)
- 1-(2-Amino-4-chlorophenyl)-2-methylpropan-1-one (CAS 151029-79-7)
- 1-(2-Amino-5-ethylphenyl)-2-chloroethan-1-one (CAS 164788-90-3)
- 1-(2-Amino-3,5-dimethylphenyl)-2-chloroethan-1-one (CAS 61871-83-8)
- 1-(2-Amino-3-ethylphenyl)-2-chloroethan-1-one (CAS 343791-43-5)
- 1-(2-Amino-4,5-dimethylphenyl)-2-chloroethanone (CAS 817209-30-6)
Recommended Standards
- [3-(4-Chlorophenyl)oxetan-3-yl]methanamine (CAS 1260672-85-2)
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- (4-(Allyloxy)-3-chlorophenyl)methanamine (CAS 1251923-94-0)
- 2-(3-Chloro-4-methoxyphenyl)cyclopropan-1-amine (CAS 1267666-30-7)
- 2-(4-Butoxyphenyl)-8-chloroquinoline-4-carboxylic acid (CAS 863185-06-2)
- tert-Butyl (2R)-2-(aminomethyl)-2-propylazetidine-1-carboxylate (CAS 1630815-43-8)
- 4-Cyclopropylpyridine hydrochloride (CAS 5046-52-6)
- Apixaban Impurity 45 (CAS 503614-56-0)
- (R)-(-)-Piperitone (CAS 4573-50-6)
- 2-(Benzylthio)-5-((4-bromobenzyl)thio)-1,3,4-thiadiazole (CAS 477331-46-7)
- 2-Propylpyrrolidine hydrochloride (CAS 1609407-52-4)
- 2,5,5-Trimethyl-2-hexene (CAS 40467-04-7)
- 1-Morpholino-2-((5-morpholino-4-tosylthiazol-2-yl)thio)ethan-1-one (CAS 874594-15-7)
- Semaglutide Impurity 143 (CAS CATO-C4X-2226143)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com